The UFC’s 40th and final fight card of 2016 took place Friday with UFC 207 at T-Mobile Arena in Las Vegas.

The pay-per-view main card, which followed prelims on FS1 and UFC Fight Pass, ended in dramatic fashion when champion Amanda Nunes (14-4 MMA, 7-1 UFC) stopped MMA superstar Ronda Rousey (12-2 MMA, 6-2 UFC) in just 48 seconds to successfully defend her women’s bantamweight title for the first time.

Matt Brown performed an honest career calculation that led him to his decision to retire after his next fight. His opponent, Diego Sanchez, seems to have chosen the opposite path. For many aging fighters, these are the two choices, and neither is an easy one to make.